LCD Display Device for 5/5.5 Inches Size. This display is compatible only with 36V 12A controller or JIPIN controller. Please confirm the controller model before purchasing. Incompatible controllers may result in throttle malfunction. Display wiring instructions (match according to wire color during installation): Red wire: + (power supply voltage) Black wire: - White wire: Controller switch control line Blue wire: RXD signal line Yellow wire: TXD signal line Green wire: Acceleration signal line NOTE: Instrument settings for 24V/36V voltage: Press and hold the middle button for 3 seconds to switch modes. Use up and down buttons to increase or decrease gears. Press both up and down buttons simultaneously to enter the setting interface. Press the middle button to cycle through settings. Use up and down buttons to adjust parameters. Press both up and down buttons simultaneously to save settings. Material: Plastic Color: Black Package Contents: 1 x Scooter Display Note: The package includes only the items listed above. Other accessories are not included. Lighting and display differences may cause slight variations between the actual product color and the image shown. Measurement error allowance is +/- 1-3 cm.